Method and System for the Electrochemical Co-Production of Halogen and Carbon Monoxide for Carbonylated Products

A method for producing a first product from a first region of an electrochemical cell having a cathode and a second product from a second region of the electrochemical cell having an anode, the method comprising the steps of:

• contacting the first region with a catholyte;
• contacting the second region with an anolyte comprising a recycled reactant;
• and
• applying an electrical potential between the anode and the cathode sufficient to produce hydrogen recoverable from the first region and a halogen recoverable from the second region, where the halogen includes at least one of F2, Cl2, Br2 or I2;
• reacting the hydrogen recovered from the first region with carbon dioxide to produce water and carbon monoxide;
• and
• reacting the carbon monoxide, the halogen recovered from the second region and an additional reactant to form a third product and the recycled reactant.

A method for producing a first product from a first region of an electrochemical cell having a cathode and a second product from a second region of the electrochemical cell having an anode, the method comprising the steps of:

• contacting the first region with a catholyte;
• contacting the second region with an anolyte comprising a recycled reactant and carbon monoxide;
• applying an electrical potential between the anode and the cathode sufficient to produce hydrogen recoverable from the first region and phosgene recoverable from the second region;
• reacting the hydrogen recovered from the first region with carbon dioxide to produce water and carbon monoxide, the carbon monoxide being supplied as an input feed to the second region;
• and
• reacting the phosgene recovered from the second region and an additional reactant to form a third product and the recycled reactant.